CN104322131B - A kind of uplink signal detection method and relevant device, system - Google Patents
A kind of uplink signal detection method and relevant device, system Download PDFInfo
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- CN104322131B CN104322131B CN201280000755.0A CN201280000755A CN104322131B CN 104322131 B CN104322131 B CN 104322131B CN 201280000755 A CN201280000755 A CN 201280000755A CN 104322131 B CN104322131 B CN 104322131B
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- 238000001514 detection method Methods 0.000 title claims abstract description 109
- 230000005540 biological transmission Effects 0.000 claims description 46
- 230000003247 decreasing effect Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000008030 elimination Effects 0.000 description 25
- 238000003379 elimination reaction Methods 0.000 description 25
- 239000013256 coordination polymer Substances 0.000 description 24
- 230000011664 signaling Effects 0.000 description 8
- 230000001960 triggered effect Effects 0.000 description 8
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/04—Reselecting a cell layer in multi-layered cells
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
A kind of uplink signal detection method includes：Micro-base station detects whether receive the uplink signal in the uplink receiving window of macro base station according to the configuration information of the UE uplink signals sent；Wherein, the macro base station and the micro-base station clock rate synchronization, and there are set time difference t1 between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station, and ︱ >=0 ︱ t1；If detecting not receiving the uplink signal in the uplink receiving window of the macro base station, which detects the uplink signal after the uplink receiving window of macro base station is shifted to an earlier date at least one circulating prefix-length and is sent to the macro base station again.The embodiment of the present invention can be to including that the UE uplink signals except the downlink coverage area of micro-base station, and including the UE of the macro base station service of micro-base station downlink coverage edge are effectively detected.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of uplink signal detection method and relevant device, system.
Background technology
With user terminal（User Equipment, UE）Quantity be continuously increased, micro-base station is disposed more and more
In the operator network, the data traffic of macro base station and the processing pressure of reduction macro base station are shunted so as to realize.It is this
Heterogeneous network is also referred to as by the network of macro base station and micro-base station mixed deployment（Heterogeneous Network, HetNet）.
Referring to Fig. 1, Fig. 1 is a kind of existing schematic diagram of heterogeneous network.In heterogeneous network shown in Fig. 1, when macro
Base station service UE except the downlink coverage area of micro-base station, and positioned at micro-base station downlink coverage edge when, the macro base
The uplink signal of UE to the macro base station of the service of standing can cause uplink interference to the micro-base station, at this point, the UE of the macro base station service
It is properly termed as the interference source of the micro-base station.In order to identify the interference source of micro-base station, industry proposes certain methods at present, these sides
Method include allow micro-base station detection macro base station service UE uplink detection reference signal（Sounding Reference
Signals, SRS）Or uplink preamble（Preamble）Or uplink demodulation reference signal（Demodulation Reference
Signals, DMRS）, and macro base station is fed back to, the identification of interference source is completed by macro base station.
In practical application, the uplink signal of the UE of base station service is only in the reception window starting point of base station to cyclic prefix
（Cyclic Prefix, CP）When reaching base station in the section of end, base station could successfully detect the uplink signal.And in order to
Meet this requirement, base station generally can be to the UE distribution time leads（Timing advanced, TA）, so that the UE is obtained
How long know sends uplink signal in advance, so that the uplink signal of the UE can be in the reception window starting point of base station
To cyclic prefix（Cyclic Prefix, CP）The section of end reaches base station.
In heterogeneous network, when the UE of macro base station service is except the downlink coverage area of micro-base station, but it is located at micro-base station
When the edge of downlink coverage area, the TA for using macro base station to distribute is sent uplink signal by the UE of the macro base station service, due to
The UE apart from macro base station farther out, therefore macro base station distribute to the UE TA it is generally large；And the UE is closer apart from micro-base station, therefore
The uplink signal that the UE is sent is likely to just reach the micro-base station before the reception window starting point of the micro-base station so that micro- base
The uplink signal of UE transmissions can not be detected by standing.
Invention content
The technical problem to be solved is that provide a kind of uplink signal detection method and relevant device, be for the embodiment of the present invention
System, the uplink signal for UE are effectively detected.
On the one hand the embodiment of the present invention provides a kind of uplink signal detection method, including：
Micro-base station is used to send the configuration information of uplink signal according to user equipment, detects the uplink receiving window in macro base station
Inside whether receive the uplink signal；Wherein, the macro base station and the micro-base station clock rate synchronization, and the macro base station
Uplink receiving window and the uplink receiving window of the micro-base station between there are set time difference t1, wherein ︱ >=0 ︱ t1；
If detecting not receiving the uplink signal in the uplink receiving window of the macro base station, the micro-base station will
The uplink receiving window of macro base station detects the uplink signal after shifting to an earlier date at least one circulating prefix-length and is sent to described again
Macro base station.
On the other hand the embodiment of the present invention provides a kind of uplink signal detection method, including：
User equipment receives the Timing Advance new information that macro base station is sent, and the Timing Advance new information is used for
Indicate that the Timing Advance that the macro base station has been distributed to the user equipment is decreased to preset time lead；
The user equipment by the allocated Timing Advance of the macro base station be decreased to the preset time lead it
Afterwards, uplink signal is sent according to the preset time lead, so that micro-base station is described for sending according to the user equipment
The configuration information of uplink signal detects the uplink signal in the uplink receiving window of the macro base station and is sent to the macro base
It stands；Wherein, the macro base station and the micro-base station clock rate synchronization, and the uplink receiving window of the macro base station with it is described micro-
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of base station.
Correspondingly, the embodiment of the present invention on the one hand a kind of uplink signal detection device is provided, be applied to micro-base station, it is described on
Row signal detection apparatus includes：
Detection unit, the configuration information for being used to send uplink signal according to user equipment are detected in the upper of macro base station
Whether the uplink signal is received in row reception window；Wherein, the macro base station and the micro-base station clock rate synchronization, and institute
State between the uplink receiving window of macro base station and the uplink receiving window of the micro-base station that there are set time difference t1, wherein ︱ >=0 ︱ t1；
Control unit, it is described for detecting not receiving in the uplink receiving window of the macro base station in the detection unit
When uplink signal, the uplink receiving window of the macro base station is shifted to an earlier date at least one circulating prefix-length；
The detection unit is additionally operable in described control unit that the uplink receiving window of the macro base station is at least one in advance
The uplink signal is detected after circulating prefix-length；
Transmission unit, the uplink signal for detecting the detection unit are sent to the macro base station.
Correspondingly, on the other hand the embodiment of the present invention provides a kind of user equipment, the user equipment includes：
Receiving unit, the Timing Advance new information for receiving macro base station transmission, the Timing Advance update disappear
Breath, which is used to indicate, have been distributed to the Timing Advance of the user equipment by the macro base station and is decreased to preset time lead；
Control unit, for the allocated Timing Advance of the macro base station to be decreased to the preset time lead；
Transmission unit, it is described pre- for being decreased to the allocated Timing Advance of the macro base station in described control unit
If after Timing Advance, uplink signal is sent according to the preset time lead, so that micro-base station is single according to the transmission
Configuration information of the member for sending uplink signal, detects the uplink signal and is sent in the uplink receiving window of the macro base station
To the macro base station；Wherein, the macro base station and the micro-base station clock rate synchronization, and the uplink receiving of the macro base station
There are set time difference t1, wherein ︱ >=0 ︱ t1 between window and the uplink receiving window of the micro-base station.
Correspondingly, on the one hand the embodiment of the present invention also provides a kind of uplink signal detecting system, including：
User equipment, micro-base station and macro base station；
Wherein, the user equipment provides service by the macro base station, and the user equipment is located at the micro-base station
Downlink coverage area except, and positioned at the downlink coverage edge of the micro-base station；The macro base station and micro- base
It stands clock rate synchronization, and exists between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station and fix
Time difference t1, wherein ︱ >=0 ︱ t1；
Wherein, the micro-base station includes above-mentioned uplink signal detection device；
The user equipment, for sending uplink signal；
The macro base station, the uplink signal sent for receiving the user equipment that the micro-base station detects.
Correspondingly, on the other hand the embodiment of the present invention also provides another uplink signal detecting system, including：
On the other hand above-mentioned user equipment that micro-base station, macro base station and the embodiment of the present invention provide；
Wherein, the user equipment provides service by the macro base station, and the user equipment is located at the micro-base station
Downlink coverage area except, and positioned at the downlink coverage edge of the micro-base station；The macro base station and micro- base
It stands clock rate synchronization, and exists between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station and fix
Time difference t1, wherein ︱ >=0 ︱ t1；
Wherein, the macro base station updates messages to the user equipment, the time advance for sending time lead
Amount new information, which is used to indicate, have been distributed to the Timing Advance of the user equipment by the macro base station and is decreased to preset time
Lead；And receive the uplink signal that the user equipment that the micro-base station detects is sent;
The configuration information for the uplink signal that the micro-base station is used to be sent according to the user equipment, in the macro base station
The uplink signal is detected in uplink receiving window and is sent to the macro base station.
In the embodiment of the present invention, clock rate synchronization between macro base station and micro-base station, and the uplink receiving window of macro base station
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of micro-base station；On this basis, one side micro-base station
The configuration information of uplink signal can be used to send according to user equipment, whether detection to receive in the uplink receiving window of macro base station
The uplink signal, if it is not, then micro-base station can shift to an earlier date the uplink receiving window of macro base station after at least one circulating prefix-length again
Secondary detection uplink signal is simultaneously sent to macro base station；On the other hand, the time advance that user equipment can also be sent according to macro base station
New information is measured, the allocated Timing Advance of macro base station is decreased to preset time lead and then according to preset time
Lead sends uplink signal, so that micro-base station is used to send the configuration information of uplink signal, Ke Yi according to user equipment
The uplink signal is detected in the uplink receiving window of macro base station and is sent to macro base station；To realize micro-base station to user equipment
Effective detection of uplink signal makes macro base station can recognize that the user equipment for causing uplink interference to micro-base station, and then carries out
Interference is eliminated；Meanwhile the embodiment of the present invention can also avoid micro-base station from constantly carrying out repeated detection in all resources and cause
Processing load.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of schematic diagram of existing heterogeneous network；
Fig. 2 ~ Fig. 8 is the flow diagram of several embodiments of uplink signal detection method provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of the embodiment of uplink signal detection device provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of the embodiment of user equipment provided in an embodiment of the present invention；
Figure 11 ~ Figure 12 is the structural representation of two embodiments of uplink signal detecting system provided in an embodiment of the present invention
Figure.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a kind of uplink signal detection method and relevant device, systems, can be to including being located at
Except the downlink coverage area of micro-base station, and including the UE by macro base station service of micro-base station downlink coverage edge
The uplink signal of UE is effectively detected so that and macro base station can identify the user equipment that uplink interference is caused to micro-base station,
And then carry out interference elimination；It is also possible to avoid micro-base station repeated detection is constantly carried out in all resources and caused by
Reason burden.It is described in detail separately below.
Referring to Fig. 2, Fig. 2 is a kind of flow chart of uplink signal detection method provided in an embodiment of the present invention.Such as Fig. 2 institutes
Show, which may comprise steps of.
201, micro-base station is used to send the configuration information of uplink signal according to UE, detects in the uplink receiving window of macro base station
Whether the uplink signal is received；Wherein, the macro base station and the micro-base station clock rate synchronization, and the uplink receiving of the macro base station
There are set time difference t1, wherein ︱ >=0 ︱ t1 between window and the uplink receiving window of the micro-base station.
In one embodiment, which can be provided service by the macro base station, and the UE can be located under the micro-base station
Except row coverage area, and positioned at the downlink coverage edge of the micro-base station.To which micro-base station can be to being located at micro-base station
Downlink coverage area except, and positioned at micro-base station downlink coverage edge the UE by macro base station service uplink signal into
Row effectively detection so that macro base station can identify the user equipment that uplink interference is caused to micro-base station, and then carry out interference and disappear
It removes；
In one embodiment, the above-mentioned configuration information for sending the uplink signal may include for sending uplink letter
Number transmission frequency, sending time, frequency hop sequences etc., even if also saying, the above-mentioned configuration information for sending uplink signal is extremely
May include the transmission resource for sending the uplink signal less.
In the embodiment of the present invention, as ︱ t1 ︱=0, illustrate that the macro base station and the micro-base station clock are perfectly aligned, this is macro at this time
The uplink receiving window of base station is identical as the uplink receiving window of the micro-base station, and as ︱ t1 ︱ ≠ 0, illustrate the macro base station and micro- base
Clock of standing is misaligned, and there are the set time is poor between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station at this time
t1。
If 202, detecting not receiving the uplink signal in the uplink receiving window of the macro base station, which should
The uplink receiving window of macro base station detects the uplink signal after shifting to an earlier date at least one CP length and is sent to the macro base station again.
In practical application, if detecting not receiving the uplink signal in the uplink receiving window of the macro base station, this is micro-
The uplink signal is detected in base station again after can the uplink receiving window of the macro base station being put forward previous CP length, if still detected
Less than the uplink signal, then the micro-base station can further shift to an earlier date the uplink receiving window of the macro base station after 2 CP length again
The uplink signal is detected, until the micro-base station detects the uplink after the uplink receiving window of the macro base station is shifted to an earlier date N number of CP length
The macro base station is sent to until signal.
In one embodiment, if detecting to receive the uplink signal in the uplink receiving window of the macro base station, this is micro-
It base station can also be by the relevant information of the uplink signal or the uplink signal（Such as UE is identified）It is sent to the macro base station, is made
The user equipment that uplink interference is caused to micro-base station can be identified by obtaining macro base station, and then carry out interference elimination.
As an alternative embodiment, in uplink signal detection method shown in Fig. 2, it, should before step 201
Micro-base station can also receive the configuration information of the UE transmission uplink signals of macro base station transmission and storage.
As another optional embodiment, in uplink signal detection method shown in Fig. 2, before step 201,
The micro-base station can also reciprocally negotiate the configuration information that UE sends uplink signal with the macro base station, and the embodiment of the present invention does not limit
It is fixed.
As an alternative embodiment, in uplink signal detection method shown in Fig. 2, above-mentioned uplink signal can
With any one in uplink SRS, uplink Preamble or uplink DMRS, the embodiment of the present invention is not construed as limiting.
In uplink signal detection method shown in Fig. 2, clock rate synchronization between macro base station and micro-base station, and macro base
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window stood and the uplink receiving window of micro-base station；It is basic herein
On, micro-base station can according to the configuration information of the uplink signal sent with UE, detect in the uplink receiving window of macro base station whether
The uplink signal is received, if it is not, then micro-base station can shift to an earlier date the uplink receiving window of macro base station after at least one CP length again
Detecting uplink signal and being sent to macro base station makes macro to realize effective detection of the micro-base station to the UE uplink signals sent
Base station can recognize that the UE that uplink interference is caused to micro-base station, and then carry out interference elimination；Meanwhile the embodiment of the present invention also may be used
Repeated detection is constantly carried out in all resources to avoid micro-base station and caused by processing load.
Referring to Fig. 3, Fig. 3 is the flow chart of another uplink signal detection method provided in an embodiment of the present invention.In Fig. 3
Shown in uplink signal detection method, it is assumed that UE provides service by macro base station, and UE is located at the downlink covering model of micro-base station
Except enclosing, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock rate synchronization between macro base station and micro-base station,
And there are set time difference t1, wherein ︱=0 ︱ t1 between the uplink receiving window of macro base station and the uplink receiving window of micro-base station,
I other words the macro base station and the micro-base station clock are perfectly aligned, the uplink receiving window of the macro base station and the micro-base station is upper at this time
Row reception window is identical.As shown in figure 3, the uplink signal detection method may comprise steps of.
301, the configuration information of the UE uplink SRSs sent is sent to micro-base station by macro base station, and triggering micro-base station starts to detect
The uplink SRS that the UE is sent.
302, micro-base station detects the uplink receiving window in the macro base station according to the configuration information of the UE uplink SRSs sent（Or
Person is in the uplink receiving window of the micro-base station, and the two is identical at this time）The uplink SRS inside whether is received, if so, thening follow the steps
304；If not, thening follow the steps 303 and step 304.
303, when in step 302 micro-base station detect the uplink receiving window in the macro base station（Or in the upper of the micro-base station
Row reception window, the two is identical at this time）When not receiving the uplink SRS inside, micro-base station can carry the uplink receiving window of the macro base station
The uplink SRS is detected again after previous CP length, and executes step 304.
When the uplink SRS for showing the normal TA that UE is configured according to macro base station in practice to send, it is likely that can be in micro-base station
Uplink receiving window（It is identical as the uplink receiving window of macro base station at this time）Starting point before reach micro-base station, and in most of situation
Under, which reaches the uplink receiving window of micro-base station in advance（It is identical as the uplink receiving window of macro base station at this time）Starting point
Timing Advance does not exceed a CP length, that is to say, that if the uplink receiving window starting point of macro base station is 0 point, UE
Uplink SRS reach micro-base station time generally can be in the range of [- CP ,+CP].Therefore, micro-base station is by the upper of the macro base station
The uplink SRS can be effectively detected after putting forward previous CP length in row reception window.
304, after micro-base station detects the uplink SRS that the UE is sent, by the uplink SRS or the relevant information of uplink SRS
（As UE is identified）It is sent to macro base station.
Wherein, after macro base station receives the uplink SRS that micro-base station is sent, it can identify and send the uplink SRS
UE can cause the micro-base station uplink interference, and in other words the UE is the interference source in up going route of the micro-base station, and macro base station can at this time
To carry out interference elimination to the UE.Since the specific implementation that macro base station can carry out the UE interference elimination is that this field is general
The common knowledge of logical technical staff, therefore, the embodiment of the present invention does not repeat herein.
In uplink signal detection method shown in Fig. 3, the sequencing of step 302 and step 303 can also exchange, or
Both persons execute parallel, and the embodiment of the present invention is not construed as limiting.Further, above-mentioned steps 302 can be triggered by step 301 and be held
Row, and step 303 can be triggered by step 304 and be stopped.Certainly, step 302 can also be by special between macro base station and micro-base station
Door signaling can also be stopped by the special signaling between macro base station and micro-base station to trigger to trigger execution and step 303, this
Inventive embodiments are not construed as limiting.
In one embodiment, the uplink SRS in uplink signal detection method shown in Fig. 3 can also be changed to uplink
Preamble or uplink DMRS realizes that the embodiment of the present invention is not construed as limiting without influencing the present invention.
In uplink signal detection method shown in Fig. 3, UE provides service by macro base station, and UE is located under micro-base station
Except row coverage area, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock frequency between macro base station and micro-base station
Rate synchronizes, and there are set time difference t1, wherein ︱ between the uplink receiving window of macro base station and the uplink receiving window of micro-base station
︱=0 t1；On this basis, micro-base station can detect the uplink in macro base station according to the configuration information of the uplink SRS sent with UE
Whether the uplink signal is received in reception window, if it is not, then micro-base station can be at least one in advance by the uplink receiving window of macro base station
Uplink SRS is detected after CP length again and is sent to macro base station, to realize effective inspection of the micro-base station to the uplink SRS of UE
It surveys, so that macro base station is can recognize that the UE for causing uplink interference to micro-base station, and then carry out interference elimination；Meanwhile the present invention is real
Apply example can also avoid micro-base station repeated detection is constantly carried out in all resources and caused by processing load.
Referring to Fig. 4, Fig. 4 is the flow chart of another uplink signal detection method provided in an embodiment of the present invention.In Fig. 4
Shown in uplink signal detection method, it is assumed that UE provides service by macro base station, and UE is located at the downlink covering model of micro-base station
Except enclosing, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock rate synchronization between macro base station and micro-base station,
And there are set time difference t1, wherein ︱ ≠ 0 ︱ t1 between the uplink receiving window of macro base station and the uplink receiving window of micro-base station,
I other words the macro base station is misaligned with the micro-base station clock.As shown in figure 4, the uplink signal detection method may include following
Step.
401, the configuration information of the UE uplink SRSs sent is sent to micro-base station by macro base station, and triggering micro-base station starts to detect
The uplink SRS that the UE is sent.
402, micro-base station detects the uplink receiving window in the macro base station according to the configuration information of the UE uplink SRSs sent（This
When the macro base station uplink receiving window and the uplink receiving window of micro-base station between there are set time difference t1）Inside whether receive on this
Row SRS, if so, thening follow the steps 404；If not, thening follow the steps 403 and step 404.
403, when in step 402 micro-base station detect the uplink receiving window in the macro base station（Or in the upper of the micro-base station
Row reception window, the two is identical at this time）When not receiving the uplink SRS inside, micro-base station can carry the uplink receiving window of the macro base station
The uplink SRS is detected again after previous CP length, and executes step 404.
404, after micro-base station detects the uplink SRS that the UE is sent, by the uplink SRS or the relevant information of uplink SRS
（As UE is identified）It is sent to macro base station.
Wherein, after macro base station receives the uplink SRS that micro-base station is sent, it can identify and send the uplink SRS
UE can cause the micro-base station uplink interference, and in other words the UE is the interference source in up going route of the micro-base station, and macro base station can at this time
To carry out interference elimination to the UE.Since the specific implementation that macro base station can carry out the UE interference elimination is that this field is general
The common knowledge of logical technical staff, therefore, the embodiment of the present invention does not repeat herein.
In uplink signal detection method shown in Fig. 4, the sequencing of step 402 and step 403 can also exchange, or
Both persons execute parallel, and the embodiment of the present invention is not construed as limiting.Further, above-mentioned steps 402 can be triggered by step 401 and be held
Row, and step 403 can be triggered by step 404 and be stopped.Certainly, step 402 can also be by special between macro base station and micro-base station
Door signaling can also be stopped by the special signaling between macro base station and micro-base station to trigger to trigger execution and step 403, this
Inventive embodiments are not construed as limiting.
In one embodiment, the uplink SRS in uplink signal detection method shown in Fig. 4 can also be changed to uplink
Preamble or uplink DMRS realizes that the embodiment of the present invention is not construed as limiting without influencing the present invention.
In uplink signal detection method shown in Fig. 4, UE provides service by macro base station, and UE is located under micro-base station
Except row coverage area, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock frequency between macro base station and micro-base station
Rate synchronizes, and there are set time difference t1, wherein ︱ between the uplink receiving window of macro base station and the uplink receiving window of micro-base station
︱ ≠ 0 t1；On this basis, micro-base station can be detected according to the configuration information of the uplink SRS sent with UE in the upper of macro base station
Whether the uplink signal is received in row reception window, if it is not, then the uplink receiving window of macro base station can be shifted to an earlier date at least one by micro-base station
Uplink SRS is detected again after a CP length and is sent to macro base station, to realize effective inspection of the micro-base station to the uplink SRS of UE
It surveys, so that macro base station is can recognize that the UE for causing uplink interference to micro-base station, and then carry out interference elimination；Meanwhile the present invention is real
Apply example can also avoid micro-base station repeated detection is constantly carried out in all resources and caused by processing load.
Referring to Fig. 5, Fig. 5 is the flow chart of another uplink signal detection method provided in an embodiment of the present invention.In Fig. 5
Shown in uplink signal detection method, it is assumed that UE provides service by macro base station, and UE is located at the downlink covering model of micro-base station
Except enclosing, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock rate synchronization between macro base station and micro-base station,
And there are set time difference t1, wherein ︱=0 ︱ t1 between the uplink receiving window of macro base station and the uplink receiving window of micro-base station,
I other words the macro base station and the micro-base station clock are perfectly aligned, the uplink receiving window of the macro base station and the micro-base station is upper at this time
Row reception window is identical.As shown in figure 5, the uplink signal detection method may comprise steps of.
501, after micro-base station and macro base station consult the configuration information that UE sends uplink Preamble, by macro base station by UE
The configuration information for sending uplink Preamble notifies UE.
In one embodiment, micro-base station can inform the configuration information of its selected UE transmission uplinks Preamble macro
Base station, or its selected UE configuration informations for sending uplink Preamble can also be informed into micro-base station by macro base station, this
Inventive embodiments are not construed as limiting.
502, micro-base station detects the uplink receiving in the macro base station according to the configuration information of the UE uplink Preamble sent
Window（Or the uplink receiving window in the micro-base station, the two is identical at this time）Uplink Preamble inside whether is received, if it is,
Execute step 504；If not, thening follow the steps 503 and step 504.
503, when in step 502 micro-base station detect the uplink receiving window in the macro base station（Or in the upper of the micro-base station
Row reception window, the two is identical at this time）When not receiving uplink Preamble inside, micro-base station can be by the uplink receiving of the macro base station
Window detects uplink Preamble again after putting forward previous CP length, and executes step 504.
504, after micro-base station detects the uplink Preamble that the UE is sent, by uplink Preamble or uplink
The relevant information of Preamble（As UE is identified）It is sent to macro base station.
Wherein, after macro base station receives the uplink Preamble that micro-base station is sent, it can identify and send the uplink
The UE of Preamble can cause the micro-base station uplink interference, and in other words the UE is the interference source in up going route of the micro-base station, this
When macro base station can carry out interference elimination to the UE.Since macro base station can carry out the UE specific implementation of interference elimination
It is the common knowledge of those of ordinary skill in the art, therefore, the embodiment of the present invention does not repeat herein.
In uplink signal detection method shown in Fig. 5, the sequencing of step 502 and step 503 can also exchange, or
Both persons execute parallel, and the embodiment of the present invention is not construed as limiting.Further, above-mentioned steps 502 can be triggered by step 501 and be held
Row, and step 503 can be triggered by step 504 and be stopped.Certainly, step 502 can also be by special between macro base station and micro-base station
Door signaling can also be stopped by the special signaling between macro base station and micro-base station to trigger to trigger execution and step 503, this
Inventive embodiments are not construed as limiting.Alternatively, micro-base station and macro base station can negotiate uplink of a lot of for detecting UE transmissions
The configuration information of preamble so that macro base station can continue the uplink preamble that detection UE is sent, and be examined without triggering
It surveys and stops.
In uplink signal detection method shown in Fig. 5, UE provides service by macro base station, and UE is located under micro-base station
Except row coverage area, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock frequency between macro base station and micro-base station
Rate synchronizes, and there are set time difference t1, wherein ︱ between the uplink receiving window of macro base station and the uplink receiving window of micro-base station
︱=0 t1；On this basis, micro-base station can consult the configuration information of the uplink preamble of UE transmissions with macro base station, in turn
Micro-base station can according to the configuration information of the uplink preamble sent with UE, detect in the uplink receiving window of macro base station whether
The uplink signal is received, if it is not, then micro-base station can shift to an earlier date the uplink receiving window of macro base station after at least one CP length again
Detecting uplink SRS and being sent to macro base station makes macro base to realize effective detection of the micro-base station to the uplink preamble of UE
Station can recognize that the UE that uplink interference is caused to micro-base station, and then carry out interference elimination；Meanwhile the embodiment of the present invention can also
Avoid micro-base station repeated detection is constantly carried out in all resources and caused by processing load.
Referring to Fig. 6, Fig. 6 is the flow chart of another uplink signal detection method provided in an embodiment of the present invention.In Fig. 6
Shown in uplink signal detection method, it is assumed that UE provides service by macro base station, and UE is located at the downlink covering model of micro-base station
Except enclosing, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock rate synchronization between macro base station and micro-base station,
And there are set time difference t1, wherein ︱ ≠ 0 ︱ t1 between the uplink receiving window of macro base station and the uplink receiving window of micro-base station,
I other words the macro base station is misaligned with the micro-base station clock.As shown in fig. 6, the uplink signal detection method may include following
Step.
601, after micro-base station and macro base station consult the configuration information that UE sends uplink Preamble, by macro base station by UE
The configuration information for sending uplink Preamble notifies UE.
In one embodiment, micro-base station can inform the configuration information of its selected UE transmission uplinks Preamble macro
Base station, or its selected UE configuration informations for sending uplink Preamble can also be informed into micro-base station by macro base station, this
Inventive embodiments are not construed as limiting.
602, micro-base station detects the uplink receiving in the macro base station according to the configuration information of the UE uplink Preamble sent
Window（There are set time difference t1 between the uplink receiving window of the macro base station and the uplink receiving window of micro-base station at this time）Inside whether receive
To uplink Preamble, if so, thening follow the steps 604；If not, thening follow the steps 603 and step 604.
603, when in step 602 micro-base station detect not receiving the uplink in the uplink receiving window of the macro base station
When Preamble, micro-base station detects the uplink again after can the uplink receiving window of the macro base station being put forward previous CP length
Preamble, and execute step 604.
604, after micro-base station detects the uplink Preamble that the UE is sent, uplink Preamble is sent to macro base
It stands.
Wherein, after macro base station receives the uplink Preamble that micro-base station is sent, it can identify and send the uplink
The UE of Preamble can cause the micro-base station uplink interference, and in other words the UE is the interference source in up going route of the micro-base station, this
When macro base station can carry out interference elimination to the UE.Since macro base station can carry out the UE specific implementation of interference elimination
It is the common knowledge of those of ordinary skill in the art, therefore, the embodiment of the present invention does not repeat herein.
In uplink signal detection method shown in Fig. 6, the sequencing of step 602 and step 603 can also exchange, or
Both persons execute parallel, and the embodiment of the present invention is not construed as limiting.Further, above-mentioned steps 602 can be triggered by step 601 and be held
Row, and step 603 can be triggered by step 604 and be stopped.Certainly, step 602 can also be by special between macro base station and micro-base station
Door signaling can also be stopped by the special signaling between macro base station and micro-base station to trigger to trigger execution and step 603, this
Inventive embodiments are not construed as limiting.Alternatively, micro-base station and macro base station can negotiate uplink of a lot of for detecting UE transmissions
The configuration information of preamble so that macro base station can continue the uplink preamble that detection UE is sent, and be examined without triggering
It surveys and stops.
In uplink signal detection method shown in Fig. 6, UE provides service by macro base station, and UE is located under micro-base station
Except row coverage area, and positioned at the downlink coverage edge of micro-base station；Meanwhile clock frequency between macro base station and micro-base station
Rate synchronizes, and there are set time difference t1, wherein ︱ between the uplink receiving window of macro base station and the uplink receiving window of micro-base station
︱ ≠ 0 t1；On this basis, micro-base station can consult the configuration information of the uplink preamble of UE transmissions with macro base station, in turn
Micro-base station can according to the configuration information of the uplink preamble sent with UE, detect in the uplink receiving window of macro base station whether
The uplink signal is received, if it is not, then micro-base station can shift to an earlier date the uplink receiving window of macro base station after at least one CP length again
Detecting uplink SRS and being sent to macro base station makes macro base to realize effective detection of the micro-base station to the uplink preamble of UE
Station can recognize that the UE that uplink interference is caused to micro-base station, and then carry out interference elimination；Meanwhile the embodiment of the present invention can also
Avoid micro-base station repeated detection is constantly carried out in all resources and caused by processing load.
In above-mentioned Fig. 2 ~ uplink signal shown in fig. 6 detection method, when micro-base station detects that the uplink in the macro base station connects
It receives in window when not receiving the uplink signal, micro-base station can carry the uplink receiving window of the macro base station after previous CP length again
Detect the uplink signal.As an alternative embodiment, when micro-base station detects in the uplink receiving window of the macro base station
When not receiving the uplink signal, micro-base station can also carry the uplink receiving window of the macro base station after previous N number of CP length again
Detect the uplink signal, wherein N is the natural number more than 1.Wherein, the value of N can be by operation management maintainance（Operation
Administration and Maintenance, OAM）Entity configuration, can also by micro-base station according to UE to macro base station away from
It is calculated from the range difference with UE to micro-base station, the embodiment of the present invention is not described in detail.In other words, the embodiment of the present invention can
Two uplink receiving windows in above-mentioned Fig. 2 ~ uplink signal shown in fig. 6 detection method are changed to multiple reception windows, wherein
One be macro base station uplink receiving window, remaining is to shift to an earlier date the uplink obtained after N number of CP length by the uplink receiving window of macro base station
Reception window.
Referring to Fig. 7, Fig. 7 is the flow chart of another uplink signal detection method provided in an embodiment of the present invention.Such as Fig. 7
Shown, which may comprise steps of.
701, UE receives the TA new informations that macro base station is sent, which, which is used to indicate, has distributed the macro base station
It is decreased to default TA to the TA of the UE.
Wherein, the TA which has distributed to the UE refers to the TA that the macro base station has distributed to the UE under normal circumstances.
For example, which can be the 1/2 of the TA that the macro base station has distributed to the UE, alternatively, the default TA can
To be small other numerical value of TA for having distributed to the UE than the macro base station, the embodiment of the present invention is not construed as limiting.
702, after the allocated TA of macro base station is decreased to default TA by UE, uplink signal is sent according to default TA, so that
Micro-base station is used to send the configuration information of the uplink signal according to UE, and the uplink signal is detected in the uplink receiving window of macro base station
And it is sent to macro base station；Wherein, the macro base station and the micro-base station clock rate synchronization, and the uplink receiving window of the macro base station with
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of the micro-base station.
In one embodiment, which can be provided service by the macro base station, and the UE can be located under the micro-base station
Except row coverage area, and positioned at the downlink coverage edge of the micro-base station.
Wherein, after macro base station receives the uplink signal that micro-base station is sent, it can identify and send the uplink signal
UE uplink interference can be caused to the micro-base station, in other words the UE is the interference source in up going route of the micro-base station, at this time macro base station
Interference elimination can be carried out to the UE.
In one embodiment, the configuration information that above-mentioned UE is used to send uplink signal at least may include that UE is used to send
The transmission channel of the uplink signal, even if also saying, the configuration information that above-mentioned UE is used to send uplink signal at least may include
UE is used to send the transmission resource of the uplink signal.
As an alternative embodiment, in uplink signal detection method shown in Fig. 7, the uplink signal of UE transmissions
Can be that uplink SRS, uplink Preamble or uplink DMRS, the embodiment of the present invention that UE is sent are not construed as limiting.
In the embodiment of the present invention, clock rate synchronization between macro base station and micro-base station, and the uplink receiving window of macro base station
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of micro-base station；On this basis, UE can be according to macro
The allocated TA of macro base station is decreased to default TA and then is sent according to default TA by the TA new informations that base station is sent
Row signal, so that configuration information of the micro-base station according to uplink signal, can detect the uplink in the uplink receiving window of macro base station
Signal is simultaneously sent to macro base station；To realize effective detection of the micro-base station to the uplink signal of UE, macro base station is enable to identify
Go out to cause micro-base station the user equipment of uplink interference, and then carries out interference elimination；Meanwhile the embodiment of the present invention can also avoid
Micro-base station repeated detection is constantly carried out in all resources and caused by processing load.
Referring to Fig. 8, Fig. 8 is the flow chart of another uplink signal detection method provided in an embodiment of the present invention.In Fig. 8
Shown in method, it is assumed that UE provides service by macro base station, and UE is located at except the downlink coverage area of micro-base station, Yi Jiwei
In the downlink coverage edge of micro-base station；Wherein, clock rate synchronization between macro base station and micro-base station, and macro base station is upper
There are set time difference t1, ︱ >=0 ︱ t1 between row reception window and the uplink receiving window of micro-base station.As shown in figure 8, the uplink signal
Detection method may comprise steps of.
801, macro base station sends TA new informations to UE, which is used to indicate UE by the allocated TA of macro base station
It is reduced to original 1/2.
In one embodiment, which can also indicate that the allocated TA of macro base station is suitably decreased to other by UE
Numerical value, the embodiment of the present invention are not construed as limiting.
802, the allocated TA of macro base station is reduced to original 1/2 by UE, and sends uplink letter according to the TA after reduction
Number.
If 803, micro-base station and macro base station clock are perfectly aligned, in other words ︱=0 ︱ t1, then micro-base station is in the upper of oneself
Row reception window（Or the uplink receiving window of macro base station, the two are identical）Interior detection uplink signal；If micro-base station and macro base station
Clock is misaligned, in other words ︱ ≠ 0 ︱ t1, then uplink receiving window of the micro-base station in macro base station（The uplink receiving of macro base station at this time
There are set time difference t1 between window and the uplink receiving window of micro-base station）Interior detection uplink signal.
804, uplink signal that micro-base station will detect（Or the relevant information of the uplink signal）Macro base station is sent to,
So that macro base station is can recognize that the UE for causing uplink interference to micro-base station, and then carries out interference elimination.
As an alternative embodiment, in uplink signal detection method shown in Fig. 8, after UE is according to reduction
After TA sends uplink signal, TA more newer commands may be used in macro base station or other new signal UE by the TA after reduction
Allocated TA before being adjusted to（I.e. macro base station distributes to the TA of UE under normal circumstances）.
As an alternative embodiment, in uplink signal detection method shown in Fig. 8, above-mentioned uplink signal can
With any one in uplink SRS, uplink Preamble or uplink DMRS, the embodiment of the present invention is not construed as limiting.
In practical application, due to UE apart from macro base station farther out, macro base station has distributed to the TA of the UE（That is normal condition
Lower macro base station distributes to the TA of UE）It is generally large, and the UE is relatively close apart from micro-base station, therefore the UE has been distributed according to macro base station
TA send uplink signal be likely to just reach the micro-base station before the reception window starting point of the micro-base station so that micro- base
The uplink signal of UE transmissions can not be detected by standing.And in uplink signal detection method shown in Fig. 8, UE is sent out according to macro base station
The allocated TA of macro base station is reduced to original 1/2 or other numerical value and then according to subtracting by the instruction for the TA new informations sent
TA after small sends uplink signal, it can be ensured that make uplink signal that UE sends in the uplink receiving window of the micro-base station or
It is detected by the micro-base station in the uplink receiving window of the macro base station.
Referring to Fig. 9, Fig. 9 is a kind of structure chart of uplink signal detection device provided in an embodiment of the present invention, the uplink
Signal detection apparatus is applied to micro-base station.As shown in figure 9, the uplink signal detection device may include detection unit 901, control
Unit 902 and transmission unit 903, wherein：
Detection unit 901, the configuration information for being used to send uplink signal according to UE, the uplink detected in macro base station connect
It receives in window and whether receives the uplink signal；Wherein, the macro base station and the micro-base station clock rate synchronization, and the macro base station is upper
There are set time difference t1, wherein ︱ >=0 ︱ t1 between row reception window and the uplink receiving window of the micro-base station.
In one embodiment, which can be provided service by the macro base station, and the UE can be located under the micro-base station
Except row coverage area, and positioned at the downlink coverage edge of the micro-base station.
Control unit 902 does not receive this for being detected in detection unit 901 in the uplink receiving window of the macro base station
When row signal, the uplink receiving window of the macro base station is shifted to an earlier date at least one CP length.
Above-mentioned detection unit 901 is additionally operable in control unit 902 that the uplink receiving window of the macro base station is at least one in advance
The uplink signal is detected after CP length.
Transmission unit 903, the uplink signal for detecting detection unit 901 are sent to macro base station.
Wherein, macro base station receives being somebody's turn to do for the transmission of transmission unit 903 of the uplink signal detection device applied to micro-base station
After uplink signal, it can identify that the UE for sending the uplink signal can cause the micro-base station uplink interference, in other words should
UE is the interference source in up going route of the micro-base station, and macro base station can carry out interference elimination to the UE at this time.
In one embodiment, uplink signal detection device shown in Fig. 9 can be with receiving unit 904, wherein receiving unit
The configuration information of 904 UE transmission uplink signals for receiving macro base station transmission is simultaneously exported to detection unit 902.
In one embodiment, the configuration information of above-mentioned uplink signal at least may include the transmission frequency of the uplink signal
Road, even if also saying, the configuration information of above-mentioned uplink signal at least may include the transmission resource of the uplink signal.
As an alternative embodiment, in uplink signal detection device shown in Fig. 9, above-mentioned uplink signal can
With any one in uplink SRS, uplink Preamble or uplink DMRS, the embodiment of the present invention is not construed as limiting.
Based on uplink signal detection device shown in Fig. 9, micro-base station can effectively examine the UE uplink signals sent
It surveys, causes the UE of uplink interference to micro-base station to make macro base station can recognize that, and then carry out interference elimination；Meanwhile this hair
Bright embodiment can also avoid micro-base station repeated detection is constantly carried out in all resources and caused by processing load.
Referring to Fig. 10, Figure 10 is a kind of structure chart of user equipment provided in an embodiment of the present invention.Wherein, shown in Figure 10
User equipment provide service by macro base station, and the user equipment is located at except the downlink coverage area of micro-base station, Yi Jiwei
In the downlink coverage edge of micro-base station；The macro base station and the micro-base station clock rate synchronization, and the uplink of the macro base station
There are set time difference t1, wherein ︱ >=0 ︱ t1 between reception window and the uplink receiving window of the micro-base station.As shown in Figure 10, the UE
May include receiving unit 1001, control unit 1002 and transmission unit 1003, wherein：
Receiving unit 1001, the TA new informations for receiving macro base station transmission, which is used to indicate will be macro
The TA of user equipment is distributed in base station（I.e. macro base station distributes to the TA of user equipment under normal circumstances）It is decreased to default TA.
Control unit 1002, for the allocated TA of macro base station to be decreased to default TA.
Transmission unit 1003 is pressed after the allocated TA of macro base station is decreased to default TA in control unit 1002
Uplink signal is sent according to default TA, so that micro-base station is used to send the configuration information of the uplink signal according to transmission unit 1003,
The uplink signal is detected in the uplink receiving window of macro base station and is sent to macro base station, so that macro base station can identify that transmission should
The UE of uplink signal can cause uplink interference to the micro-base station, so as to carry out interference elimination to the UE.
As an alternative embodiment, in user equipment shown in Fig. 10, above-mentioned uplink signal can be with uplink
Any one in SRS, uplink Preamble or uplink DMRS, the embodiment of the present invention is not construed as limiting.
Based on user equipment shown in Fig. 10, the uplink signal that micro-base station can send the user equipment is effectively examined
It surveys, to make macro base station can recognize that, the user equipment causes uplink interference to the micro-base station, and then macro base station can be to this
User equipment carries out interference elimination；Meanwhile it can also avoid micro-base station in all resources based on user equipment shown in Fig. 10
Constantly carry out repeated detection and caused by processing load.
It is a kind of structure chart of uplink signal detecting system provided in an embodiment of the present invention to please refer to Fig.1 1, Figure 11.Such as figure
Shown in 11, which may include user equipment 1101, micro-base station 1102 and macro base station 1103；Wherein,
User equipment 1101 provides service by macro base station 1103, and user equipment 1101 is located at the downlink coverage area of micro-base station 1102
Except, and positioned at the downlink coverage edge of micro-base station 1102；Macro base station 1103 and 1102 clock rate synchronization of micro-base station,
And there are set time difference t1, wherein ︱ between the uplink receiving window of macro base station 1103 and the uplink receiving window of micro-base station 1102
︱ >=0 t1.
In the uplink signal detecting system shown in Figure 11, micro-base station 1102 includes the uplink letter of structure as shown in Figure 9
Number detection device（Figure 11 is not drawn into）.
In the uplink signal detecting system shown in Figure 11, user equipment 1101 is for sending uplink signal.In other words,
User equipment 1101 sends uplink signal according to the TA that macro base station 1103 distributes.
In the uplink signal detecting system shown in Figure 11, macro base station 1103 is for receiving the use that micro-base station 1102 detects
The uplink signal that family equipment 1101 is sent, and identify that user equipment 1101 is the interference source of micro-base station 1102.Further, macro
Base station 1103 can carry out interference elimination to user equipment 1101.
In the uplink signal detecting system shown in Figure 11, micro-base station 1102 can be to the uplink of the transmission of user equipment 1101
Signal is effectively detected, and to make macro base station 1103 can recognize that, the user equipment 1101 causes the micro-base station 1102
Row interference, and then macro base station 1103 can carry out interference elimination to the user equipment 1101.Meanwhile based on uplink shown in Figure 11
Signal detection system can also avoid micro-base station 1102 repeated detection is constantly carried out in all resources and caused by processing load.
Please refer to Fig.1 the structure chart that 2, Figure 12 is another uplink signal detecting system provided in an embodiment of the present invention.Such as
Shown in Figure 12, which may include micro-base station 1201, macro base station 1202 and user equipment 1203；Its
In, the structure of user equipment 1203 can be as shown in Figure 10, and the embodiment of the present invention does not repeat herein.Wherein, user equipment
1203 provide service by macro base station 1202, and user equipment 1203 is located at except the downlink coverage area of micro-base station 1201, with
And the downlink coverage edge positioned at micro-base station 1201；Macro base station 1202 and 1201 clock rate synchronization of micro-base station, and it is macro
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of base station 1202 and the uplink receiving window of micro-base station 1201.
Wherein, macro base 1202 updates messages to user equipment 1203 for sending TA, the TA new informations be used to indicate by
The TA that macro base station 1202 has distributed to user equipment 1203 is decreased to default TA；And receive the user that micro-base station 1201 detects
The uplink signal that equipment 1203 is sent, and identify that user equipment 1203 is the interference source of micro-base station 1201.
Wherein, the configuration information for the uplink signal that micro-base station 1201 is used to be sent according to user equipment 1203, in macro base station
The uplink signal is detected in 1202 uplink receiving window and is sent to macro base station 1202.
In the uplink signal detecting system shown in Figure 12, micro-base station 1201 can be to the uplink of the transmission of user equipment 1203
Signal is effectively detected, and to make macro base station 1202 can recognize that, the user equipment 1203 causes the micro-base station 1201
Row interference, and then macro base station 1203 can carry out interference elimination to the user equipment 1203.Meanwhile based on uplink shown in Figure 12
Signal detection system can also avoid micro-base station 1202 repeated detection is constantly carried out in all resources and caused by processing load.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include：Flash disk, read-only memory（Read-OnlyMemory, ROM）, random access device（Random Access
Memory, RAM）, disk or CD etc..
It is provided for the embodiments of the invention uplink signal detection method, relevant device and system above and has carried out detailed Jie
It continues, principle and implementation of the present invention are described for specific case used herein, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not manage
Solution is limitation of the present invention.
Claims (20)
1. a kind of uplink signal detection method, which is characterized in that including：
Micro-base station is used to send the configuration information of uplink signal according to user equipment, and detection is in the uplink receiving window of macro base station
It is no to receive the uplink signal；Wherein, the user equipment receives the Timing Advance new information of macro base station transmission and incites somebody to action
The allocated Timing Advance of macro base station is decreased to after preset time lead, by the user equipment according to described pre-
If Timing Advance sends the uplink signal, the macro base station and the micro-base station clock rate synchronization, and the macro base
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of the uplink receiving window and the micro-base station stood；
If detecting not receiving the uplink signal in the uplink receiving window of the macro base station, the micro-base station will be described
The uplink receiving window of macro base station detects the uplink signal after shifting to an earlier date at least one circulating prefix-length and is sent to described again
Macro base station.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
The micro-base station receives the configuration information that the macro base station is sent, and the configuration information is for detecting in the macro base
The uplink signal whether is received in the uplink receiving window stood.
3. according to the method described in claim 1, it is characterized in that, the user equipment by the macro base station provide service, and
And the user equipment is located at except the downlink coverage area of the micro-base station, and cover model positioned at the downlink of the micro-base station
Peripheral edge.
4. method according to claim 1,2 or 3, which is characterized in that the configuration information of the uplink signal includes at least
The transmission channel of the uplink signal.
5. method according to claim 1,2 or 3, which is characterized in that the uplink signal includes uplink detection with reference to letter
Number, uplink preamble or uplink demodulation reference signal.
6. a kind of uplink signal detection method, which is characterized in that including：
User equipment receives the Timing Advance new information that macro base station is sent, and the Timing Advance new information is used to indicate
The Timing Advance that the macro base station has been distributed to the user equipment is decreased to preset time lead；
After the allocated Timing Advance of the macro base station is decreased to the preset time lead by the user equipment, press
Uplink signal is sent according to the preset time lead, so that micro-base station is believed according to the user equipment for sending the uplink
Number configuration information, the uplink signal is detected in the uplink receiving window of the macro base station and sends the uplink signal to institute
State macro base station；Wherein, the macro base station and the micro-base station clock rate synchronization, and the uplink receiving window of the macro base station with
There are set time difference t1, wherein ︱ >=0 ︱ t1 between the uplink receiving window of the micro-base station.
7. according to the method described in claim 6, it is characterized in that, the user equipment by the macro base station provide service, and
And the user equipment is located at except the downlink coverage area of the micro-base station, and cover model positioned at the downlink of the micro-base station
Peripheral edge.
8. according to the method described in claim 6, it is characterized in that, the configuration information of the uplink signal includes at least on described
The transmission channel of row signal.
9. according to the method described in claim 6,7 or 8, which is characterized in that the uplink signal includes uplink detection with reference to letter
Number, uplink preamble or uplink demodulation reference signal.
10. a kind of uplink signal detection device, which is characterized in that be applied to micro-base station, the equipment includes：
Detection unit, the configuration information for being used to send uplink signal according to user equipment, the uplink detected in macro base station connect
It receives in window and whether receives the uplink signal；Wherein, the user equipment receives the Timing Advance update of macro base station transmission
Message and after the allocated Timing Advance of the macro base station is decreased to preset time lead, is pressed by the user equipment
The uplink signal, the macro base station and the micro-base station clock rate synchronization are sent according to the preset time lead, and
There are set time difference t1 between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station, wherein ︱ t1 ︱ >=
0；
Control unit does not receive the uplink for being detected in the detection unit in the uplink receiving window of the macro base station
When signal, the uplink receiving window of the macro base station is shifted to an earlier date at least one circulating prefix-length；
The detection unit is additionally operable to that the uplink receiving window of the macro base station is shifted to an earlier date at least one cycle in described control unit
The uplink signal is detected after prefix length again；
Transmission unit, the uplink signal for detecting the detection unit are sent to the macro base station.
11. equipment according to claim 10, which is characterized in that the equipment further includes：
Receiving unit, the configuration information and output for receiving the macro base station transmission are described to match to the detection unit
Confidence breath is for detecting whether receive the uplink signal in the uplink receiving window of the macro base station.
12. equipment according to claim 10, which is characterized in that the user equipment provides service by the macro base station,
And the user equipment is located at except the downlink coverage area of the micro-base station, and is covered positioned at the downlink of the micro-base station
Volume edges.
13. according to the equipment described in claim 10,11 or 12, which is characterized in that the user equipment is for sending uplink letter
Number configuration information include at least the user equipment and be used to send the transmission channel of the uplink signal.
14. according to the equipment described in claim 10,11 or 12, which is characterized in that the uplink that the user equipment is sent
Signal includes uplink detection reference signal, uplink preamble or the uplink demodulation reference signal that the user equipment is sent.
15. a kind of user equipment, which is characterized in that including：
Receiving unit, the Timing Advance new information for receiving macro base station transmission, the Timing Advance new information are used
The Timing Advance that the macro base station has been distributed to the user equipment in instruction is decreased to preset time lead；
Control unit, for the allocated Timing Advance of the macro base station to be decreased to the preset time lead；
Transmission unit, for when the allocated Timing Advance of the macro base station is decreased to described default by described control unit
Between after lead, uplink signal is sent according to the preset time lead, so that micro-base station is used according to the transmission unit
In the configuration information for sending the uplink signal, the uplink signal is detected in the uplink receiving window of the macro base station and is sent
To the macro base station；Wherein, the macro base station and the micro-base station clock rate synchronization, and the uplink receiving of the macro base station
There are set time difference t1, wherein ︱ >=0 ︱ t1 between window and the uplink receiving window of the micro-base station.
16. user equipment according to claim 15, which is characterized in that the user equipment provides clothes by the macro base station
Business, and the user equipment is located at except the downlink coverage area of the micro-base station, and positioned at the downlink of the micro-base station
Coverage edge.
17. user equipment according to claim 15, which is characterized in that the configuration for sending the uplink signal
Information includes at least the transmission channel for sending the uplink signal.
18. according to the user equipment described in claim 15,16 or 17, which is characterized in that the uplink signal includes that uplink is visited
Survey any one in reference signal, uplink preamble or uplink demodulation reference signal.
19. a kind of uplink signal detecting system, which is characterized in that including：
User equipment, micro-base station and macro base station；
Wherein, the user equipment provides service by the macro base station, and the user equipment is located under the micro-base station
Except row coverage area, and positioned at the downlink coverage edge of the micro-base station；When the macro base station is with the micro-base station
Clock Frequency Synchronization, and there are the set times between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station
Poor t1, wherein ︱ >=0 ︱ t1；
Wherein, the micro-base station includes the uplink signal detection device described in claim 10~14 any one；
The user equipment, the Timing Advance new information for receiving macro base station transmission are allocated by the macro base station
Timing Advance is decreased to after the preset time lead, and uplink signal is sent according to the preset time lead；
The macro base station, the uplink signal sent for receiving the user equipment that the micro-base station detects.
20. a kind of uplink signal detecting system, which is characterized in that including：
User equipment described in micro-base station, macro base station and claim 15~18 any one；
Wherein, the user equipment provides service by the macro base station, and the user equipment is located under the micro-base station
Except row coverage area, and positioned at the downlink coverage edge of the micro-base station；When the macro base station is with the micro-base station
Clock Frequency Synchronization, and there are the set times between the uplink receiving window of the macro base station and the uplink receiving window of the micro-base station
Poor t1, wherein ︱ >=0 ︱ t1；
Wherein, the macro base station updates messages to the user equipment for sending time lead, and the Timing Advance is more
New information, which is used to indicate, have been distributed to the Timing Advance of the user equipment by the macro base station and is decreased to preset time and shifts to an earlier date
Amount；And receive the uplink signal that the user equipment that the micro-base station detects is sent；
The configuration information for the uplink signal that the micro-base station is used to be sent according to the user equipment, in the uplink of the macro base station
The uplink signal is detected in reception window and is sent to the macro base station.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/075830 WO2013173965A1 (en) | 2012-05-21 | 2012-05-21 | Uplink signal detecting method and relevant device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104322131A CN104322131A (en) | 2015-01-28 |
| CN104322131B true CN104322131B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201280000755.0A Active CN104322131B (en) | 2012-05-21 | 2012-05-21 | A kind of uplink signal detection method and relevant device, system |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US9681346B2 (en) |
| EP (1) | EP2840853B1 (en) |
| JP (1) | JP6137646B2 (en) |
| CN (1) | CN104322131B (en) |
| WO (1) | WO2013173965A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10122500B2 (en) * | 2015-08-26 | 2018-11-06 | Apple Inc. | Efficient sparse network resource usage and connection release |
| TWI566613B (en) * | 2015-10-15 | 2017-01-11 | 廣達電腦股份有限公司 | Data flow relay device and communication apparatus |
| CN108988972B (en) * | 2017-06-02 | 2020-04-28 | 华为技术有限公司 | Clock synchronization method and equipment |
| CN109526003B (en) * | 2018-03-05 | 2020-04-03 | 大唐联仪科技有限公司 | Method and device for detecting uplink signal of target terminal |
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| JP5619631B2 (en) * | 2009-02-04 | 2014-11-05 | 株式会社Ｎｔｔドコモ | Radio base station and communication control method |
| US8849263B2 (en) * | 2009-06-19 | 2014-09-30 | Lg Electronics Inc. | Efficient handover execution method of terminal in broadband wireless access system including multiple femto base stations |
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- 2012-05-21 CN CN201280000755.0A patent/CN104322131B/en active Active
- 2012-05-21 EP EP12877520.2A patent/EP2840853B1/en active Active
- 2012-05-21 JP JP2015512978A patent/JP6137646B2/en active Active
- 2012-05-21 WO PCT/CN2012/075830 patent/WO2013173965A1/en active Application Filing
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2014
- 2014-11-20 US US14/548,802 patent/US9681346B2/en active Active
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| CN101990774A (en) * | 2008-02-01 | 2011-03-23 | 高通股份有限公司 | Interference mitigation for control channels in a wireless communication network |
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| CN102045830A (en) * | 2009-10-20 | 2011-05-04 | ***通信集团公司 | Method, device and system for synchronizing null interface |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170251447A1 (en) | 2017-08-31 |
| EP2840853A4 (en) | 2015-11-04 |
| US10341913B2 (en) | 2019-07-02 |
| JP6137646B2 (en) | 2017-05-31 |
| WO2013173965A1 (en) | 2013-11-28 |
| EP2840853A1 (en) | 2015-02-25 |
| CN104322131A (en) | 2015-01-28 |
| EP2840853B1 (en) | 2018-11-21 |
| JP2015520998A (en) | 2015-07-23 |
| US20150079996A1 (en) | 2015-03-19 |
| US9681346B2 (en) | 2017-06-13 |
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